The slave ship Windsor Castle departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Trinidad and Tobago.

Vessel: Windsor Castle; flag: Great Britain; rig: Ship; estimated standardized tonnage: 316. People recorded in connection with the voyage: Captain: Curry, Gilbert; Investor: Case, George; Investor: Aspinall, John B; Captain: Apsinall, James; Investor: Apsinall, James. The voyage began at Liverpool on 19 July 1801. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Trinidad, port unspecified. Recorded outcome: Voyage completed as intended.